creaImageIOSynchronizer.cpp

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/*
# ---------------------------------------------------------------------
#
# Copyright (c) CREATIS (Centre de Recherche en Acquisition et Traitement de l'Image 
#                        pour la Santé)
# Authors : Eduardo Davila, Frederic Cervenansky, Claire Mouton
# Previous Authors : Laurent Guigues, Jean-Pierre Roux
# CreaTools website : www.creatis.insa-lyon.fr/site/fr/creatools_accueil
#
#  This software is governed by the CeCILL-B license under French law and 
#  abiding by the rules of distribution of free software. You can  use, 
#  modify and/ or redistribute the software under the terms of the CeCILL-B 
#  license as circulated by CEA, CNRS and INRIA at the following URL 
#  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
#  or in the file LICENSE.txt.
#
#  As a counterpart to the access to the source code and  rights to copy,
#  modify and redistribute granted by the license, users are provided only
#  with a limited warranty  and the software's author,  the holder of the
#  economic rights,  and the successive licensors  have only  limited
#  liability. 
#
#  The fact that you are presently reading this means that you have had
#  knowledge of the CeCILL-B license and that you accept its terms.
# ------------------------------------------------------------------------
*/


#include <creaImageIOSystem.h>
#include <creaImageIOSynchronizer.h>
#include "boost/filesystem.hpp"

namespace fs = boost::filesystem;

namespace creaImageIO
{

  //==============================================================
        Synchronizer::Synchronizer(TreeHandler * th)
    : mHandler(th)
  {    
   
  }
  //==============================================================
 
  //==============================================================
        Synchronizer::~Synchronizer()
  {    
   
  }
  //==============================================================

  //==============================================================
  std::string Synchronizer::Synchronize(bool update)
  {
          GimmickMessage(1,"Synchronizing "<<std::endl);
          int id=1;
          std::stringstream mess;
          std::string file;
          mHandler->GetAttribute("Image","","","FullFileName",file);
          size_t ini=0;
          size_t fin=0;
          while(fin<file.size()-1)
          {
           fin=file.find('#',ini);
           SynchronizeFile(update,file.substr(ini,fin-ini),mess);
           ini=fin+1;
          }
          if(mess.str()=="")
          {
                  mess<<"Database up to date"<<std::endl;
          }
          GimmickMessage(1,mess.str());
          return mess.str();
  }
  //==============================================================

  //==============================================================
  void Synchronizer::SynchronizeFile(bool update, std::string file, std::stringstream& mess)
  {
        if(!FileExists(file))
        {
                if(update)
                {
                        mHandler->DeleteTuple("Image","FullFileName",file);
                        mess<<file<<" has been removed from the DB"<<std::endl;
                }
                else
                {
                        mess<<file<<" State: Non existant"<<std::endl;
                }
        }
        else 
        {
                AttributesMatch(update,file,mess);
        } 
  }
  //==============================================================

  //==============================================================
  bool Synchronizer::FileExists(std::string file)
  {
          GimmickDebugMessage(4,"Verifying if file "<<file<<" exists"<<std::endl);
          bool exists=true;
          if ( !fs::exists( file ) )
          {
                  exists=false;
          }
          return exists;
  }
  //==============================================================

  //==============================================================
  void Synchronizer::AttributesMatch(bool update, std::string file, std::stringstream& mess)
  {
          std::map< std::string, std::string>  attr;
          mHandler->GetTree().GetDescriptor().BuildAttributeMap(attr);
      mReader.ReadAttributes(file,attr);
          tree::LevelDescriptor::AttributeDescriptorListType adl= mHandler->GetTree().GetAttributeDescriptorList(mHandler->GetTree().GetNumberOfLevels()-1);    
          tree::LevelDescriptor::AttributeDescriptorListType::const_iterator a;
          for (a = adl.begin();a!=adl.end();++a)
          {
           std::string databaseVal;
           mHandler->GetAttribute("Image","FullFileName",file,a->GetKey(),databaseVal);
           std::string fileVal=attr.find(a->GetKey())->second;
           if ( a->GetFlags()==0 && databaseVal.compare(fileVal)!=0 ) 
            {
                  if(update)
                        {
                                mHandler->SetAttribute("Image",a->GetKey(),fileVal,"FullFileName", file);
                                mess<<file<<" has been updated in the DB"<<std::endl;
                        }
                        else
                        {
                                mess<<file<<" State: Attributes differ"<<std::endl;
                        }
            }
          }
  }
  //==============================================================

}